59 static void psc_dma_bcom_enqueue_next_buffer(struct psc_dma_stream *s)  in psc_dma_bcom_enqueue_next_buffer()  argument
64 	bd = bcom_prepare_next_buffer(s->bcom_task);  in psc_dma_bcom_enqueue_next_buffer()
65 	bd->status = s->period_bytes;  in psc_dma_bcom_enqueue_next_buffer()
66 	bd->data[0] = s->runtime->dma_addr + (s->period_next * s->period_bytes);  in psc_dma_bcom_enqueue_next_buffer()
67 	bcom_submit_next_buffer(s->bcom_task, NULL);  in psc_dma_bcom_enqueue_next_buffer()
70 	s->period_next = (s->period_next + 1) % s->runtime->periods;  in psc_dma_bcom_enqueue_next_buffer()
76 	struct psc_dma_stream *s = _psc_dma_stream;  in psc_dma_bcom_irq()  local
78 	spin_lock(&s->psc_dma->lock);  in psc_dma_bcom_irq()
81 	while (bcom_buffer_done(s->bcom_task)) {  in psc_dma_bcom_irq()
82 		bcom_retrieve_buffer(s->bcom_task, NULL, NULL);  in psc_dma_bcom_irq()
84 		s->period_current = (s->period_current+1) % s->runtime->periods;  in psc_dma_bcom_irq()
85 		s->period_count++;  in psc_dma_bcom_irq()
87 		psc_dma_bcom_enqueue_next_buffer(s);  in psc_dma_bcom_irq()
89 	spin_unlock(&s->psc_dma->lock);  in psc_dma_bcom_irq()
93 	if (s->active)  in psc_dma_bcom_irq()
94 		snd_pcm_period_elapsed(s->stream);  in psc_dma_bcom_irq()
116 	struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma);  in psc_dma_trigger()  local
127 		s->period_bytes = frames_to_bytes(runtime,  in psc_dma_trigger()
129 		s->period_next = 0;  in psc_dma_trigger()
130 		s->period_current = 0;  in psc_dma_trigger()
131 		s->active = 1;  in psc_dma_trigger()
132 		s->period_count = 0;  in psc_dma_trigger()
133 		s->runtime = runtime;  in psc_dma_trigger()
141 			bcom_gen_bd_rx_reset(s->bcom_task);  in psc_dma_trigger()
143 			bcom_gen_bd_tx_reset(s->bcom_task);  in psc_dma_trigger()
146 			if (!bcom_queue_full(s->bcom_task))  in psc_dma_trigger()
147 				psc_dma_bcom_enqueue_next_buffer(s);  in psc_dma_trigger()
149 		bcom_enable(s->bcom_task);  in psc_dma_trigger()
158 			substream->pstr->stream, s->period_count);  in psc_dma_trigger()
159 		s->active = 0;  in psc_dma_trigger()
162 		bcom_disable(s->bcom_task);  in psc_dma_trigger()
164 			bcom_gen_bd_rx_reset(s->bcom_task);  in psc_dma_trigger()
166 			bcom_gen_bd_tx_reset(s->bcom_task);  in psc_dma_trigger()
216 	struct psc_dma_stream *s;  in psc_dma_open()  local
222 		s = &psc_dma->capture;  in psc_dma_open()
224 		s = &psc_dma->playback;  in psc_dma_open()
235 	s->stream = substream;  in psc_dma_open()
243 	struct psc_dma_stream *s;  in psc_dma_close()  local
248 		s = &psc_dma->capture;  in psc_dma_close()
250 		s = &psc_dma->playback;  in psc_dma_close()
259 	s->stream = NULL;  in psc_dma_close()
268 	struct psc_dma_stream *s;  in psc_dma_pointer()  local
272 		s = &psc_dma->capture;  in psc_dma_pointer()
274 		s = &psc_dma->playback;  in psc_dma_pointer()
276 	count = s->period_current * s->period_bytes;  in psc_dma_pointer()